(1) A variation of basketball in which a player uses his erect penius to dribble the ball, and makes such a huge fart that when he puts the ball on his anus and aims for the hoop, he has a chance of getting 2 or 3 points.
(2) Two gay men rubbing the heads of their peniuses together while watching "Queer as Folk" on Showtime.

(1) Dude, yesterday, I was playing cocksketball with John, and I have gashes on my penius!
(2) I ran into Jack and Joey playing Cocksketball with eachother. I didn't know we had showtime.